Purpose: This article considers the relevance of healthcare modernization processes in Russia in terms of marketing activities activation, public-private partnerships intensification. Design/Methodology/Approach: The problem of ensuring security when government and healthcare institutions interact by means of blockchain technologies is under-explored and requires further research and investigation. Therefore, methods of induction, deduction, problem, system and logical analysis along with the economic process and system modelling method combined with the formalization method are used in this article. Findings: A mechanism for effective ensuring the safety of interaction between the government and healthcare institutions using blockchain technologies in the course of conducting financial flows and operational information exchange in modern Russia is proposed. Practical Implications: The proposed mechanism for effective ensuring of security in terms of interaction between the government and the healthcare institution by means of blockchain technologies in modern Russia effectively ensures the security of interaction between the government and healthcare institutions. Originality/Value: Authors' findings could be introduced into the healthcare industry.
studying AIF levels in mitochondria in cells of the heart and various organs in female mice with the growth of experimental melanoma B16 / F10 and comorbid pathology
Topicality. An increase in the incidence of malignant tumors progressing against the background of various comorbid pathologies determines the need to study the mutual influence of pathological processes using experimental modeling. Such models, for example, can reproduce the tumor growth modified by the comorbid condition of diabetes mellitus, the incidence rate of which is now increasing exponentially. In this case, a clear demonstration of changes in the structure of organs outside the zone of the primary tumor node, using data on the direct growth of the tumor and the content of diabetes markers therein and in the perifocal zone, can serve as an evidence-based argument for the implementation of the mechanism of modified tumor progression. The aim of our research work is to assess the state of the histological structure of some internal organs (the kidneys, the ovaries, the peritoneum) when modeling the main pathological process in animals, the growth of Guerin’s carcinoma, against the background of a comorbid state of experimental diabetes. Materials and methods. We used 32 outbred male and female rats weighing 180-220 g to reproduce the model of experimental diabetes by a single intraperitoneal injection of alloxan at a dosage of 150 mg/kg of body weight. One week after the production of persistent hyperglycemia in the range of 25.4±1.2 mmol/l, the animals were transplanted with Guerin’s carcinoma subcutaneously in the region of the right shoulder blade. Upon expiration of 2 weeks, the animals were decapitated, and the harvested organs were prepared according to the practice stages of morphological preparation for staining sections with hematoxylin-eosin, followed by morphological examination of the structure with the use of the Leica DM LS2 microscope with the Olympus optical. C-5050 Zoom video camera and the Morfotest software. Photographing was carried out with magnification x10, x40, x100. Results. Our study of the morphological portrayal of the ovary, the kidney, the visceral and parietal peritoneum bears witness to the identity of the changes, consisting in a total metastatic lesion and abnormal transformation of the normal structure of all the studied organs only in the female rats, when modeling the comorbid state of diabetes mellitus. At the same time, the aggressive nature of the tumor progression was manifested in the blood filling of the vessels and hemorrhage, followed by the release of tumor cells, their settlement, the enhanced proliferation, the formation of strands and compaction of cell aggregations throughout the volume of the organ. Some gender specific features of the tumor progression were noted, which were found in the female rats along the path of active metastasizing in case of small primary tumors, and in the male rats along the path of stimulating the growth of the primary focus without metastasizing. It was revealed that these differences are associated with different degrees of saturation of the tumor and perifocal zone with glucose, and they are determined by the state of the insulin/insulin-like growth factor (IGF) axis. Conclusion. Morphological examination of the organs affected by metastatic Guerin’s carcinoma in the female rats with diabetes mellitus makes it possible to detect not only the synergy of both pathological processes, but also a powerful pro-oncogenic effect of the comorbid state of diabetes in the implementation of the tumor growth program.
Aim: comparative analysis of plasmin, plasminogen (PG), urokinase PG activator (uPA) and its receptor (uPAR) in tissues of malignant tumors and intact skin of С57ВЬ/6 mice of both genders in В16/F10 melanoma reproduced in chronic neurogenic pain (CNP). Methods: The study was performed on 130 mice and В16/ F10 melanoma cell line. Levels of uPA-antigen (uPA-AG) and uPA-activity (uPA-act), uPAR, PG, PAP (plasmin-a2-antiplasmin complex) were determined by ELISA. Statistics: the Statistica 10 program. Results. CNP-induced depletion of the content and activity of uPA was maintained in the skin and tumors after melanoma transplantation. Elevation of uPAR in females under the influence of CNP after the transplantation normalized at the terminal stage only; decreased levels of uPAR in males were maintained during the whole experiment. Elevation of PAP in females with CNP was maintained in the skin and tumors after the transplantation, and in males it was less marked. CNP affected the time of development of transplantable В16/F10 melanoma in female and male С57ВL/6 mice, changed gender differences typical of the standard tumor transplantation, decreased the period prior to the development of metastases, increased their number and extended localization. Conclusions. The study confirmed involvement of plasmin and uPAR in the formation of В16/F10 melanoma in CNP with changing gender priorities in development and spread of the process.
Immediately after silicone implants were described, the technique of prepectoral implant placement dominated in breast reconstructive surgery. However, this plane soon had to be abandoned due to the high frequency of complications, such as infection, capsular contracture, explantation. For these reasons, surgeons soon had to switch to the subpectoral plane. Several decades later, thanks to the discovery of synthetic and biological meshes, surgeons returned to the prepectoral plane, but at a technically new level.The purpose of this review was to analyze the role of biological and synthetic matrices as factors influencing the choice of the implant plane in one-stage breast reconstruction.
Основные стратегии криоконсервации включают два основных криопротекторных механизма: образование стекловидной фазы и обратимую дегидратацию клеток. Однако используемые методы несовершенны, с чем связаны трудности сохранения фенотипических и функциональных особенностей биологического образца. Криопротекторные свойства используемого вещества должны сочетаться с низкой токсичностью и пригодностью для животных клеток, однако использование стандартных антифризных соединений приводит к потере фенотипических и функциональных характеристик биологического материала. Криобиология представляется перспективным направлением, которое позволит оптимизировать существующие и разработать новые способы криоконсервации, а также минимизировать токсические эффекты применяемых криопротекторных агентов. Возможность длительного сохранения жизнеспособности биологического материала играет важное значение в различных областях биологии, экспериментальной и клинической медицины, животноводства, а также сельского хозяйства и культивации растений. Целью настоящего научного обзора явилось обобщение данных отечественных и зарубежных исследований и формирование представления об отличительных особенностях различных способов криоконсервации, используемых в различных областях современной науки. Был проведен анализ отечественной и зарубежной литературы, посвященной использованию различных способов криоконсервации органов и тканей, а также биосовместимости различных криопротекторных агентов.
e22103 Background: Chronic neuropathic pain (CNP) demonstrates the ability to stimulate tumor growth and neoangiogenesis. Our purpose was to study VEGFA levels in the growth of B16/F10 melanoma with CNP in mice with genetically determined inhibition of tumor growth. Methods: Females of С57ВL/6 mice (normal genome (uPA+), n = 26) and C57BL/6-Plautm1.1BugThisPlauGFDhu/GFDhu mice (urokinase gene knockout (uPA–), n = 16) received subcutaneous transplantation of B16/F10 melanoma 2 weeks after bilateral sciatic nerve ligation (CNP model). After 3 weeks of carcinogenesis in CNP, tumor volumes were measured and levels of VEGFA were studied in tumors by ELISA. Results: Tumor volumes in (uPA+) females with CNP in week 3 of carcinogenesis were similar to that in (uPA+) females without CNP and were on average 2.6 cm3 (2.5 and 2.8 cm3 respectively). Tumor volumes in (uPA–) females were 0.04 cm3, i.e. 70 times lower (p < 0.001) than in (uPA+) females without CNP. Tumor volumes in (uPA–) females with CNP were 144 times higher (p < 0.001) than in (uPA–) females without CNP and were 5.76 cm3. VEGFA levels in tumors of (uPA+) females with CNP were 11.1 times higher (p < 0.001) than in (uPA+) females without CNP. VEGFA in tumors of (uPA–) females with CNP was 5.2 times higher (p < 0.001) than in (uPA–) females without CNP. Conclusions: The CNP state showed higher VEGFA concentrations in tumor tissues of female mice with normal genome and uPA-deficient females (with genetically determined inhibition of tumor growth) which may cause a larger tumor volume in (uPA–) female mice.
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